Map showing electric railway lines of the Wilmington and Philadelphia Traction Company

Chicago citation style
Hence, E. Map showing electric railway lines of the Wilmington and Philadelphia Traction Company. 1910. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/4m90fd47x. (Accessed June 19, 2018.)
APA citation style
Hence, E, (1910) Map showing electric railway lines of the Wilmington and Philadelphia Traction Company. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/4m90fd47x
MLA citation style
Hence, E. Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/4m90fd47x>.
Note: These citations are programmatically generated and may be incomplete.